Friday, March 25, 2011


I snapped the threads off the spark timing advance shaft on the K2. Apparently there are no more in Honda stock but they can be had elsewhere. I'll be checking David Silver Spares for a replacement.

Update [4/1/11] Gotta love ebay. I found a shaft and timing advancer in a box of random parts that I won in an auction a while back. Hooray for being a packrat.

Tuesday, March 22, 2011

Giving New Meaning to the Term "Naked Bikes"

...and simultaneously making my garage a much cleaner place.

Both bikes are now stripped down pretty much bare.
The K7 is down to the bare frame and the K2 will be undergoing an engine removal soon.

Friday, March 11, 2011

The New Game Plan Progresses

Front wheel removed.

Oil drained.

Looks like the upper triple tree is trash.

Forks removed.

Forks from the K2 and other parts bike disassembled.

The Mess is Spreading

So after pricing out my K7's engine rebuild at around $5500 (I have expensive taste) I decided to put that project on the backburner for now until I can really afford to do something about it.

In the meantime I need a bike to ride, lucky for me I have this old basket case.


The plan is to pull the motor on this K2 and check it over. If it looks capable, then I'll throw it on the K7.
While I (hopefully) ride the K7 powered by the K2 motor, I'll be building the K2 project.

The K2 is going to require a lot of work all over to get it in running condition. It had been sitting for a couple years and doesn't look as if it's led the most comfortable life up till this point.

As you can see my garage is a disaster. 
This is the result of working on multiple projects at the same time.

Refered to Hereafter As...

When discussing earlier Hondas of the same model between different years, enthusiasts often refer to them by a code consisting of a letter and number.
In the case of the 750, the code is as follows:
K0 = 1969 & 1970 CB750K
K1 = 1971 CB750K
K2 = 1972 CB750K
K3 = 1973 CB750K
K4 = 1974 CB750K
K5 = 1975 CB750K
K6 = 1976 CB750K
K7 = 1977 CB750K
K8 = 1978 CB750K

F1 = 1976 CB750F
F2 = 1977 CB750F
F3 = 1978 CB750F

Thursday, March 3, 2011

Ugly Jugs

I got the diagnosis from Manassas Honda today; apparently I'll need surgery.
The cylinders have water damage, the cylinder head is off .003" and needs to be planed level.
Ironically, the camshaft that I believed to be worn and therefore the only serious problem, is still within spec.

Wednesday, March 2, 2011

Off to the shop

The motor has finally received some lovin'. The cam, cylinder barrels, and head have been removed and are off to Manassas Honda to be checked to make sure they're within spec.

Tuesday, March 1, 2011

The Beginning of the End - the Top End that is

In focus is the valve that started this whole process.
Notice the marred edges around the top of the valve stem.
With the valve cover removed I can finally begin to crack into the motor.